cap and trade should be a $1,700 tax on american families, and that number comes from the obama administration. >> 30 seconds. >> let's stipulate we are not going to do cap and trade. senator fisher says human beings are not warming the planet, and i say we are. i say it is a compelling problem and we need to address it. we need to have a debate about how we are going to address it and what our strategy is going to be. otherwise, we are going to wonder why we did not do anything about it. >> a question for senator kerry. >> there is a lot of discussion about lowering tax rates by limiting deductions on loopholes, but one person's loophole is another person's deduction for mortgage interest or state and local taxes. would you favor eliminating or reducing any of those, or would you offer other specific changes? >> the big four are markets reductions, and i think you can scale it back. i think there is a great pay off through simplification. you have got to believe it. you have to believe simplification can generate more revenue. if it generates more revenue, you cannot do it. i think there is a